252+ Atk Pure Power Megacham Hi Jump Kick vs. 224 HP / 252+ Def Skarmory: 220-261 (67.27 - 79.81%) -- guaranteed 2HKOMegacham's attack stat:
Pretty Much.
Although, all that power is really held back by "meh" speed and defenses. 100 Speed and 60/95/95 defenses is not going to cut it in this generation full of new threats and other Mega's!